Hi There,
Firstly I would suggest you download the latest SWP for the UC-520.
Secondly extract the SWP and in there you will see various default configuration files, make sure you choose the right one for your UC-520 this is quite critical that you do.
Thirdly, if you are having troubles communicating to it, then I would suggest you manually copy over the default file (It is a .cfg file) to the Compact Flash Card by using a card reader and and copying it that way (I always had one in my bag with me, you just never new when you would have to resort to this method).
Get your system back to factory defaults, then use CCA to upgrade it or get it to the latest setup, then use the Telephony setup wizard and set things up for your demonstration.
On teh other hand, Cisco did at one stage and may still do it, provide you with a Demonstration Software Pack, if these are still available I would highly encourage you to consider using one of them as they work quite well for doing demo's, you just have to work out how they work before you do the demo, so make sure you get plenty of play time.
Cheers,
David.
Cheers,
David Trad.
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